(19)
(11) EP 1 347 559 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
24.11.2004 Bulletin 2004/48

(43) Date of publication A2:
24.09.2003 Bulletin 2003/39

(21) Application number: 03006099.0

(22) Date of filing: 19.03.2003
(51) International Patent Classification (IPC)7H02K 15/00, H02K 3/12
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
Designated Extension States:
AL LT LV MK

(30) Priority: 20.03.2002 JP 2002077474

(71) Applicant: Denso Corporation
Kariya-city, Aichi-pref., 448-8661 (JP)

(72) Inventors:
  • Dobashi, Masaomi
    Kariya-city, Aichi-pref. 448-8661 (JP)
  • Kato, Mitsuru
    Kariya-city, Aichi-pref. 448-8661 (JP)
  • Hayashida, Koji
    Kariya-city, Aichi-pref. 448-8661 (JP)
  • Takeda, Hiroaki
    Kariya-city, Aichi-pref. 448-8661 (JP)
  • Nakamura, Yoshinori
    Kariya-city, Aichi-pref. 448-8661 (JP)
  • Kitakado, Yasunori
    Kariya-city, Aichi-pref. 448-8661 (JP)
  • Murahashi, Motohiro
    Kariya-city, Aichi-pref. 448-8661 (JP)

(74) Representative: KUHNEN & WACKER 
Patent- und Rechtsanwaltsbüro Prinz-Ludwig-Strasse 40A
85354 Freising
85354 Freising (DE)

   


(54) Wound stator of a rotary electric machine and its winding method


(57) A method for manufacturing a winding (31) for an electric rotating machine (1) includes steps of altering, passing, shaping, and connecting. In the altering step, connecting portions (331d, 331d', 331e, 331e', 332d, 332d') of conductor segments (331, 332), a part of which is exposed, are altered in shape by a pressing die (100, 102, 100a, 102a) to provide good contact between the segments (331, 332) when they are connected. The altered segments (331, 332) are passing through slots (35) of a stator core (32) in the passing step. Ends of protruded portions of the segments (331, 332) are shaped so that they make an angle with respect to the radial section of the stator core (32) in the shaping step. Adjacent segments (331, 332) are connected together at ends of the connecting portion (331d, 331d', 331e, 331e', 332d, 332d') in the connecting step.







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